<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>v-bind</title>
    <style>
        .active{
            border: 1px solid red;
        }
    </style>
</head>
<body>
    <div id="app">
        <img v-bind:src="imgSrc" alt="">
        <br>
        <img :src="imgSrc" alt="" :title="imgTittle" :class="isActive?'active':''" @click="toggleActive">
        <br>
        <img :src="imgSrc" alt="" :title="imgTittle" :class="{active:isActive}" @click="toggleActive">
    </div>
<!-- 开发环境版本，包含了有帮助的命令行警告 -->
<script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
<script>
    var app = new Vue({
        el:"#app",
        data:{
            imgSrc:"images/1.jpg",
            imgTittle:"WeGame",
            isActive:false
        },
        methods:{
            toggleActive:function(){
                this.isActive=!this.isActive;
            }
        },
    })
</script>
</body>
</html>